diff options
Diffstat (limited to 'sound/oss/ad1848.c')
-rw-r--r-- | sound/oss/ad1848.c | 3062 |
1 files changed, 0 insertions, 3062 deletions
diff --git a/sound/oss/ad1848.c b/sound/oss/ad1848.c deleted file mode 100644 index 2421f59cf279..000000000000 --- a/sound/oss/ad1848.c +++ /dev/null @@ -1,3062 +0,0 @@ -/* - * sound/oss/ad1848.c - * - * The low level driver for the AD1848/CS4248 codec chip which - * is used for example in the MS Sound System. - * - * The CS4231 which is used in the GUS MAX and some other cards is - * upwards compatible with AD1848 and this driver is able to drive it. - * - * CS4231A and AD1845 are upward compatible with CS4231. However - * the new features of these chips are different. - * - * CS4232 is a PnP audio chip which contains a CS4231A (and SB, MPU). - * CS4232A is an improved version of CS4232. - * - * - * - * Copyright (C) by Hannu Savolainen 1993-1997 - * - * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL) - * Version 2 (June 1991). See the "COPYING" file distributed with this software - * for more info. - * - * - * Thomas Sailer : ioctl code reworked (vmalloc/vfree removed) - * general sleep/wakeup clean up. - * Alan Cox : reformatted. Fixed SMP bugs. Moved to kernel alloc/free - * of irqs. Use dev_id. - * Christoph Hellwig : adapted to module_init/module_exit - * Aki Laukkanen : added power management support - * Arnaldo C. de Melo : added missing restore_flags in ad1848_resume - * Miguel Freitas : added ISA PnP support - * Alan Cox : Added CS4236->4239 identification - * Daniel T. Cobra : Alernate config/mixer for later chips - * Alan Cox : Merged chip idents and config code - * - * TODO - * APM save restore assist code on IBM thinkpad - * - * Status: - * Tested. Believed fully functional. - */ - -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/stddef.h> -#include <linux/slab.h> -#include <linux/isapnp.h> -#include <linux/pnp.h> -#include <linux/spinlock.h> - -#include "sound_config.h" - -#include "ad1848.h" -#include "ad1848_mixer.h" - -typedef struct -{ - spinlock_t lock; - int base; - int irq; - int dma1, dma2; - int dual_dma; /* 1, when two DMA channels allocated */ - int subtype; - unsigned char MCE_bit; - unsigned char saved_regs[64]; /* Includes extended register space */ - int debug_flag; - - int audio_flags; - int record_dev, playback_dev; - - int xfer_count; - int audio_mode; - int open_mode; - int intr_active; - char *chip_name, *name; - int model; -#define MD_1848 1 -#define MD_4231 2 -#define MD_4231A 3 -#define MD_1845 4 -#define MD_4232 5 -#define MD_C930 6 -#define MD_IWAVE 7 -#define MD_4235 8 /* Crystal Audio CS4235 */ -#define MD_1845_SSCAPE 9 /* Ensoniq Soundscape PNP*/ -#define MD_4236 10 /* 4236 and higher */ -#define MD_42xB 11 /* CS 42xB */ -#define MD_4239 12 /* CS4239 */ - - /* Mixer parameters */ - int recmask; - int supported_devices, orig_devices; - int supported_rec_devices, orig_rec_devices; - int *levels; - short mixer_reroute[32]; - int dev_no; - volatile unsigned long timer_ticks; - int timer_running; - int irq_ok; - mixer_ents *mix_devices; - int mixer_output_port; -} ad1848_info; - -typedef struct ad1848_port_info -{ - int open_mode; - int speed; - unsigned char speed_bits; - int channels; - int audio_format; - unsigned char format_bits; -} -ad1848_port_info; - -static struct address_info cfg; -static int nr_ad1848_devs; - -static bool deskpro_xl; -static bool deskpro_m; -static bool soundpro; - -#ifndef EXCLUDE_TIMERS -static int timer_installed = -1; -#endif - -static int loaded; - -static int ad_format_mask[13 /*devc->model */ ] = -{ - 0, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW, /* AD1845 */ - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE /* CS4235 */, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW /* Ensoniq Soundscape*/, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM, - AFMT_U8 | AFMT_S16_LE | AFMT_MU_LAW | AFMT_A_LAW | AFMT_S16_BE | AFMT_IMA_ADPCM -}; - -static ad1848_info adev_info[MAX_AUDIO_DEV]; - -#define io_Index_Addr(d) ((d)->base) -#define io_Indexed_Data(d) ((d)->base+1) -#define io_Status(d) ((d)->base+2) -#define io_Polled_IO(d) ((d)->base+3) - -static struct { - unsigned char flags; -#define CAP_F_TIMER 0x01 -} capabilities [10 /*devc->model */ ] = { - {0} - ,{0} /* MD_1848 */ - ,{CAP_F_TIMER} /* MD_4231 */ - ,{CAP_F_TIMER} /* MD_4231A */ - ,{CAP_F_TIMER} /* MD_1845 */ - ,{CAP_F_TIMER} /* MD_4232 */ - ,{0} /* MD_C930 */ - ,{CAP_F_TIMER} /* MD_IWAVE */ - ,{0} /* MD_4235 */ - ,{CAP_F_TIMER} /* MD_1845_SSCAPE */ -}; - -#ifdef CONFIG_PNP -static int isapnp = 1; -static int isapnpjump; -static bool reverse; - -static int audio_activated; -#else -static int isapnp; -#endif - - - -static int ad1848_open(int dev, int mode); -static void ad1848_close(int dev); -static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag); -static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag); -static int ad1848_prepare_for_output(int dev, int bsize, int bcount); -static int ad1848_prepare_for_input(int dev, int bsize, int bcount); -static void ad1848_halt(int dev); -static void ad1848_halt_input(int dev); -static void ad1848_halt_output(int dev); -static void ad1848_trigger(int dev, int bits); -static irqreturn_t adintr(int irq, void *dev_id); - -#ifndef EXCLUDE_TIMERS -static int ad1848_tmr_install(int dev); -static void ad1848_tmr_reprogram(int dev); -#endif - -static int ad_read(ad1848_info * devc, int reg) -{ - int x; - int timeout = 900000; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - if(reg < 32) - { - outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - x = inb(io_Indexed_Data(devc)); - } - else - { - int xreg, xra; - - xreg = (reg & 0xff) - 32; - xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); - outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); - x = inb(io_Indexed_Data(devc)); - } - - return x; -} - -static void ad_write(ad1848_info * devc, int reg, int data) -{ - int timeout = 900000; - - while (timeout > 0 && inb(devc->base) == 0x80) /* Are we initializing */ - timeout--; - - if(reg < 32) - { - outb(((unsigned char) (reg & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (data & 0xff)), io_Indexed_Data(devc)); - } - else - { - int xreg, xra; - - xreg = (reg & 0xff) - 32; - xra = (((xreg & 0x0f) << 4) & 0xf0) | 0x08 | ((xreg & 0x10) >> 2); - outb(((unsigned char) (23 & 0xff) | devc->MCE_bit), io_Index_Addr(devc)); - outb(((unsigned char) (xra & 0xff)), io_Indexed_Data(devc)); - outb((unsigned char) (data & 0xff), io_Indexed_Data(devc)); - } -} - -static void wait_for_calibration(ad1848_info * devc) -{ - int timeout; - - /* - * Wait until the auto calibration process has finished. - * - * 1) Wait until the chip becomes ready (reads don't return 0x80). - * 2) Wait until the ACI bit of I11 gets on and then off. - */ - - timeout = 100000; - while (timeout > 0 && inb(devc->base) == 0x80) - timeout--; - if (inb(devc->base) & 0x80) - printk(KERN_WARNING "ad1848: Auto calibration timed out(1).\n"); - - timeout = 100; - while (timeout > 0 && !(ad_read(devc, 11) & 0x20)) - timeout--; - if (!(ad_read(devc, 11) & 0x20)) - return; - - timeout = 80000; - while (timeout > 0 && (ad_read(devc, 11) & 0x20)) - timeout--; - if (ad_read(devc, 11) & 0x20) - if ((devc->model != MD_1845) && (devc->model != MD_1845_SSCAPE)) - printk(KERN_WARNING "ad1848: Auto calibration timed out(3).\n"); -} - -static void ad_mute(ad1848_info * devc) -{ - int i; - unsigned char prev; - - /* - * Save old register settings and mute output channels - */ - - for (i = 6; i < 8; i++) - { - prev = devc->saved_regs[i] = ad_read(devc, i); - } - -} - -static void ad_unmute(ad1848_info * devc) -{ -} - -static void ad_enter_MCE(ad1848_info * devc) -{ - int timeout = 1000; - unsigned short prev; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - devc->MCE_bit = 0x40; - prev = inb(io_Index_Addr(devc)); - if (prev & 0x40) - { - return; - } - outb((devc->MCE_bit), io_Index_Addr(devc)); -} - -static void ad_leave_MCE(ad1848_info * devc) -{ - unsigned char prev, acal; - int timeout = 1000; - - while (timeout > 0 && inb(devc->base) == 0x80) /*Are we initializing */ - timeout--; - - acal = ad_read(devc, 9); - - devc->MCE_bit = 0x00; - prev = inb(io_Index_Addr(devc)); - outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ - - if ((prev & 0x40) == 0) /* Not in MCE mode */ - { - return; - } - outb((0x00), io_Index_Addr(devc)); /* Clear the MCE bit */ - if (acal & 0x08) /* Auto calibration is enabled */ - wait_for_calibration(devc); -} - -static int ad1848_set_recmask(ad1848_info * devc, int mask) -{ - unsigned char recdev; - int i, n; - unsigned long flags; - - mask &= devc->supported_rec_devices; - - /* Rename the mixer bits if necessary */ - for (i = 0; i < 32; i++) - { - if (devc->mixer_reroute[i] != i) - { - if (mask & (1 << i)) - { - mask &= ~(1 << i); - mask |= (1 << devc->mixer_reroute[i]); - } - } - } - - n = 0; - for (i = 0; i < 32; i++) /* Count selected device bits */ - if (mask & (1 << i)) - n++; - - spin_lock_irqsave(&devc->lock,flags); - if (!soundpro) { - if (n == 0) - mask = SOUND_MASK_MIC; - else if (n != 1) { /* Too many devices selected */ - mask &= ~devc->recmask; /* Filter out active settings */ - - n = 0; - for (i = 0; i < 32; i++) /* Count selected device bits */ - if (mask & (1 << i)) - n++; - - if (n != 1) - mask = SOUND_MASK_MIC; - } - switch (mask) { - case SOUND_MASK_MIC: - recdev = 2; - break; - - case SOUND_MASK_LINE: - case SOUND_MASK_LINE3: - recdev = 0; - break; - - case SOUND_MASK_CD: - case SOUND_MASK_LINE1: - recdev = 1; - break; - - case SOUND_MASK_IMIX: - recdev = 3; - break; - - default: - mask = SOUND_MASK_MIC; - recdev = 2; - } - - recdev <<= 6; - ad_write(devc, 0, (ad_read(devc, 0) & 0x3f) | recdev); - ad_write(devc, 1, (ad_read(devc, 1) & 0x3f) | recdev); - } else { /* soundpro */ - unsigned char val; - int set_rec_bit; - int j; - - for (i = 0; i < 32; i++) { /* For each bit */ - if ((devc->supported_rec_devices & (1 << i)) == 0) - continue; /* Device not supported */ - - for (j = LEFT_CHN; j <= RIGHT_CHN; j++) { - if (devc->mix_devices[i][j].nbits == 0) /* Inexistent channel */ - continue; - - /* - * This is tricky: - * set_rec_bit becomes 1 if the corresponding bit in mask is set - * then it gets flipped if the polarity is inverse - */ - set_rec_bit = ((mask & (1 << i)) != 0) ^ devc->mix_devices[i][j].recpol; - - val = ad_read(devc, devc->mix_devices[i][j].recreg); - val &= ~(1 << devc->mix_devices[i][j].recpos); - val |= (set_rec_bit << devc->mix_devices[i][j].recpos); - ad_write(devc, devc->mix_devices[i][j].recreg, val); - } - } - } - spin_unlock_irqrestore(&devc->lock,flags); - - /* Rename the mixer bits back if necessary */ - for (i = 0; i < 32; i++) - { - if (devc->mixer_reroute[i] != i) - { - if (mask & (1 << devc->mixer_reroute[i])) - { - mask &= ~(1 << devc->mixer_reroute[i]); - mask |= (1 << i); - } - } - } - devc->recmask = mask; - return mask; -} - -static void oss_change_bits(ad1848_info *devc, unsigned char *regval, - unsigned char *muteval, int dev, int chn, int newval) -{ - unsigned char mask; - int shift; - int mute; - int mutemask; - int set_mute_bit; - - set_mute_bit = (newval == 0) ^ devc->mix_devices[dev][chn].mutepol; - - if (devc->mix_devices[dev][chn].polarity == 1) /* Reverse */ - newval = 100 - newval; - - mask = (1 << devc->mix_devices[dev][chn].nbits) - 1; - shift = devc->mix_devices[dev][chn].bitpos; - - if (devc->mix_devices[dev][chn].mutepos == 8) - { /* if there is no mute bit */ - mute = 0; /* No mute bit; do nothing special */ - mutemask = ~0; /* No mute bit; do nothing special */ - } - else - { - mute = (set_mute_bit << devc->mix_devices[dev][chn].mutepos); - mutemask = ~(1 << devc->mix_devices[dev][chn].mutepos); - } - - newval = (int) ((newval * mask) + 50) / 100; /* Scale it */ - *regval &= ~(mask << shift); /* Clear bits */ - *regval |= (newval & mask) << shift; /* Set new value */ - - *muteval &= mutemask; - *muteval |= mute; -} - -static int ad1848_mixer_get(ad1848_info * devc, int dev) -{ - if (!((1 << dev) & devc->supported_devices)) - return -EINVAL; - - dev = devc->mixer_reroute[dev]; - - return devc->levels[dev]; -} - -static void ad1848_mixer_set_channel(ad1848_info *devc, int dev, int value, int channel) -{ - int regoffs, muteregoffs; - unsigned char val, muteval; - unsigned long flags; - - regoffs = devc->mix_devices[dev][channel].regno; - muteregoffs = devc->mix_devices[dev][channel].mutereg; - val = ad_read(devc, regoffs); - - if (muteregoffs != regoffs) { - muteval = ad_read(devc, muteregoffs); - oss_change_bits(devc, &val, &muteval, dev, channel, value); - } - else - oss_change_bits(devc, &val, &val, dev, channel, value); - - spin_lock_irqsave(&devc->lock,flags); - ad_write(devc, regoffs, val); - devc->saved_regs[regoffs] = val; - if (muteregoffs != regoffs) { - ad_write(devc, muteregoffs, muteval); - devc->saved_regs[muteregoffs] = muteval; - } - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_mixer_set(ad1848_info * devc, int dev, int value) -{ - int left = value & 0x000000ff; - int right = (value & 0x0000ff00) >> 8; - int retvol; - - if (dev > 31) - return -EINVAL; - - if (!(devc->supported_devices & (1 << dev))) - return -EINVAL; - - dev = devc->mixer_reroute[dev]; - - if (devc->mix_devices[dev][LEFT_CHN].nbits == 0) - return -EINVAL; - - if (left > 100) - left = 100; - if (right > 100) - right = 100; - - if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) /* Mono control */ - right = left; - - retvol = left | (right << 8); - - /* Scale volumes */ - left = mix_cvt[left]; - right = mix_cvt[right]; - - devc->levels[dev] = retvol; - - /* - * Set the left channel - */ - ad1848_mixer_set_channel(devc, dev, left, LEFT_CHN); - - /* - * Set the right channel - */ - if (devc->mix_devices[dev][RIGHT_CHN].nbits == 0) - goto out; - ad1848_mixer_set_channel(devc, dev, right, RIGHT_CHN); - - out: - return retvol; -} - -static void ad1848_mixer_reset(ad1848_info * devc) -{ - int i; - char name[32]; - unsigned long flags; - - devc->mix_devices = &(ad1848_mix_devices[0]); - - sprintf(name, "%s_%d", devc->chip_name, nr_ad1848_devs); - - for (i = 0; i < 32; i++) - devc->mixer_reroute[i] = i; - - devc->supported_rec_devices = MODE1_REC_DEVICES; - - switch (devc->model) - { - case MD_4231: - case MD_4231A: - case MD_1845: - case MD_1845_SSCAPE: - devc->supported_devices = MODE2_MIXER_DEVICES; - break; - - case MD_C930: - devc->supported_devices = C930_MIXER_DEVICES; - devc->mix_devices = &(c930_mix_devices[0]); - break; - - case MD_IWAVE: - devc->supported_devices = MODE3_MIXER_DEVICES; - devc->mix_devices = &(iwave_mix_devices[0]); - break; - - case MD_42xB: - case MD_4239: - devc->mix_devices = &(cs42xb_mix_devices[0]); - devc->supported_devices = MODE3_MIXER_DEVICES; - break; - case MD_4232: - case MD_4235: - case MD_4236: - devc->supported_devices = MODE3_MIXER_DEVICES; - break; - - case MD_1848: - if (soundpro) { - devc->supported_devices = SPRO_MIXER_DEVICES; - devc->supported_rec_devices = SPRO_REC_DEVICES; - devc->mix_devices = &(spro_mix_devices[0]); - break; - } - - default: - devc->supported_devices = MODE1_MIXER_DEVICES; - } - - devc->orig_devices = devc->supported_devices; - devc->orig_rec_devices = devc->supported_rec_devices; - - devc->levels = load_mixer_volumes(name, default_mixer_levels, 1); - - for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) - { - if (devc->supported_devices & (1 << i)) - ad1848_mixer_set(devc, i, devc->levels[i]); - } - - ad1848_set_recmask(devc, SOUND_MASK_MIC); - - devc->mixer_output_port = devc->levels[31] | AUDIO_HEADPHONE | AUDIO_LINE_OUT; - - spin_lock_irqsave(&devc->lock,flags); - if (!soundpro) { - if (devc->mixer_output_port & AUDIO_SPEAKER) - ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ - else - ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ - } else { - /* - * From the "wouldn't it be nice if the mixer API had (better) - * support for custom stuff" category - */ - /* Enable surround mode and SB16 mixer */ - ad_write(devc, 16, 0x60); - } - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_mixer_ioctl(int dev, unsigned int cmd, void __user *arg) -{ - ad1848_info *devc = mixer_devs[dev]->devc; - int val; - - if (cmd == SOUND_MIXER_PRIVATE1) - { - if (get_user(val, (int __user *)arg)) - return -EFAULT; - - if (val != 0xffff) - { - unsigned long flags; - val &= (AUDIO_SPEAKER | AUDIO_HEADPHONE | AUDIO_LINE_OUT); - devc->mixer_output_port = val; - val |= AUDIO_HEADPHONE | AUDIO_LINE_OUT; /* Always on */ - devc->mixer_output_port = val; - spin_lock_irqsave(&devc->lock,flags); - if (val & AUDIO_SPEAKER) - ad_write(devc, 26, ad_read(devc, 26) & ~0x40); /* Unmute mono out */ - else - ad_write(devc, 26, ad_read(devc, 26) | 0x40); /* Mute mono out */ - spin_unlock_irqrestore(&devc->lock,flags); - } - val = devc->mixer_output_port; - return put_user(val, (int __user *)arg); - } - if (cmd == SOUND_MIXER_PRIVATE2) - { - if (get_user(val, (int __user *)arg)) - return -EFAULT; - return(ad1848_control(AD1848_MIXER_REROUTE, val)); - } - if (((cmd >> 8) & 0xff) == 'M') - { - if (_SIOC_DIR(cmd) & _SIOC_WRITE) - { - switch (cmd & 0xff) - { - case SOUND_MIXER_RECSRC: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = ad1848_set_recmask(devc, val); - break; - - default: - if (get_user(val, (int __user *)arg)) - return -EFAULT; - val = ad1848_mixer_set(devc, cmd & 0xff, val); - break; - } - return put_user(val, (int __user *)arg); - } - else - { - switch (cmd & 0xff) - { - /* - * Return parameters - */ - - case SOUND_MIXER_RECSRC: - val = devc->recmask; - break; - - case SOUND_MIXER_DEVMASK: - val = devc->supported_devices; - break; - - case SOUND_MIXER_STEREODEVS: - val = devc->supported_devices; - if (devc->model != MD_C930) - val &= ~(SOUND_MASK_SPEAKER | SOUND_MASK_IMIX); - break; - - case SOUND_MIXER_RECMASK: - val = devc->supported_rec_devices; - break; - - case SOUND_MIXER_CAPS: - val=SOUND_CAP_EXCL_INPUT; - break; - - default: - val = ad1848_mixer_get(devc, cmd & 0xff); - break; - } - return put_user(val, (int __user *)arg); - } - } - else - return -EINVAL; -} - -static int ad1848_set_speed(int dev, int arg) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - /* - * The sampling speed is encoded in the least significant nibble of I8. The - * LSB selects the clock source (0=24.576 MHz, 1=16.9344 MHz) and other - * three bits select the divisor (indirectly): - * - * The available speeds are in the following table. Keep the speeds in - * the increasing order. - */ - typedef struct - { - int speed; - unsigned char bits; - } - speed_struct; - - static speed_struct speed_table[] = - { - {5510, (0 << 1) | 1}, - {5510, (0 << 1) | 1}, - {6620, (7 << 1) | 1}, - {8000, (0 << 1) | 0}, - {9600, (7 << 1) | 0}, - {11025, (1 << 1) | 1}, - {16000, (1 << 1) | 0}, - {18900, (2 << 1) | 1}, - {22050, (3 << 1) | 1}, - {27420, (2 << 1) | 0}, - {32000, (3 << 1) | 0}, - {33075, (6 << 1) | 1}, - {37800, (4 << 1) | 1}, - {44100, (5 << 1) | 1}, - {48000, (6 << 1) | 0} - }; - - int i, n, selected = -1; - - n = sizeof(speed_table) / sizeof(speed_struct); - - if (arg <= 0) - return portc->speed; - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* AD1845 has different timer than others */ - { - if (arg < 4000) - arg = 4000; - if (arg > 50000) - arg = 50000; - - portc->speed = arg; - portc->speed_bits = speed_table[3].bits; - return portc->speed; - } - if (arg < speed_table[0].speed) - selected = 0; - if (arg > speed_table[n - 1].speed) - selected = n - 1; - - for (i = 1 /*really */ ; selected == -1 && i < n; i++) - { - if (speed_table[i].speed == arg) - selected = i; - else if (speed_table[i].speed > arg) - { - int diff1, diff2; - - diff1 = arg - speed_table[i - 1].speed; - diff2 = speed_table[i].speed - arg; - - if (diff1 < diff2) - selected = i - 1; - else - selected = i; - } - } - if (selected == -1) - { - printk(KERN_WARNING "ad1848: Can't find speed???\n"); - selected = 3; - } - portc->speed = speed_table[selected].speed; - portc->speed_bits = speed_table[selected].bits; - return portc->speed; -} - -static short ad1848_set_channels(int dev, short arg) -{ - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - if (arg != 1 && arg != 2) - return portc->channels; - - portc->channels = arg; - return arg; -} - -static unsigned int ad1848_set_bits(int dev, unsigned int arg) -{ - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - static struct format_tbl - { - int format; - unsigned char bits; - } - format2bits[] = - { - { - 0, 0 - } - , - { - AFMT_MU_LAW, 1 - } - , - { - AFMT_A_LAW, 3 - } - , - { - AFMT_IMA_ADPCM, 5 - } - , - { - AFMT_U8, 0 - } - , - { - AFMT_S16_LE, 2 - } - , - { - AFMT_S16_BE, 6 - } - , - { - AFMT_S8, 0 - } - , - { - AFMT_U16_LE, 0 - } - , - { - AFMT_U16_BE, 0 - } - }; - int i, n = sizeof(format2bits) / sizeof(struct format_tbl); - - if (arg == 0) - return portc->audio_format; - - if (!(arg & ad_format_mask[devc->model])) - arg = AFMT_U8; - - portc->audio_format = arg; - - for (i = 0; i < n; i++) - if (format2bits[i].format == arg) - { - if ((portc->format_bits = format2bits[i].bits) == 0) - return portc->audio_format = AFMT_U8; /* Was not supported */ - - return arg; - } - /* Still hanging here. Something must be terribly wrong */ - portc->format_bits = 0; - return portc->audio_format = AFMT_U8; -} - -static struct audio_driver ad1848_audio_driver = -{ - .owner = THIS_MODULE, - .open = ad1848_open, - .close = ad1848_close, - .output_block = ad1848_output_block, - .start_input = ad1848_start_input, - .prepare_for_input = ad1848_prepare_for_input, - .prepare_for_output = ad1848_prepare_for_output, - .halt_io = ad1848_halt, - .halt_input = ad1848_halt_input, - .halt_output = ad1848_halt_output, - .trigger = ad1848_trigger, - .set_speed = ad1848_set_speed, - .set_bits = ad1848_set_bits, - .set_channels = ad1848_set_channels -}; - -static struct mixer_operations ad1848_mixer_operations = -{ - .owner = THIS_MODULE, - .id = "SOUNDPORT", - .name = "AD1848/CS4248/CS4231", - .ioctl = ad1848_mixer_ioctl -}; - -static int ad1848_open(int dev, int mode) -{ - ad1848_info *devc; - ad1848_port_info *portc; - unsigned long flags; - - if (dev < 0 || dev >= num_audiodevs) - return -ENXIO; - - devc = (ad1848_info *) audio_devs[dev]->devc; - portc = (ad1848_port_info *) audio_devs[dev]->portc; - - /* here we don't have to protect against intr */ - spin_lock(&devc->lock); - if (portc->open_mode || (devc->open_mode & mode)) - { - spin_unlock(&devc->lock); - return -EBUSY; - } - devc->dual_dma = 0; - - if (audio_devs[dev]->flags & DMA_DUPLEX) - { - devc->dual_dma = 1; - } - devc->intr_active = 0; - devc->audio_mode = 0; - devc->open_mode |= mode; - portc->open_mode = mode; - spin_unlock(&devc->lock); - ad1848_trigger(dev, 0); - - if (mode & OPEN_READ) - devc->record_dev = dev; - if (mode & OPEN_WRITE) - devc->playback_dev = dev; -/* - * Mute output until the playback really starts. This decreases clicking (hope so). - */ - spin_lock_irqsave(&devc->lock,flags); - ad_mute(devc); - spin_unlock_irqrestore(&devc->lock,flags); - - return 0; -} - -static void ad1848_close(int dev) -{ - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - devc->intr_active = 0; - ad1848_halt(dev); - - spin_lock_irqsave(&devc->lock,flags); - - devc->audio_mode = 0; - devc->open_mode &= ~portc->open_mode; - portc->open_mode = 0; - - ad_unmute(devc); - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_output_block(int dev, unsigned long buf, int count, int intrflag) -{ - unsigned long flags, cnt; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - cnt = count; - - if (portc->audio_format == AFMT_IMA_ADPCM) - { - cnt /= 4; - } - else - { - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ - cnt >>= 1; - } - if (portc->channels > 1) - cnt >>= 1; - cnt--; - - if ((devc->audio_mode & PCM_ENABLE_OUTPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && - intrflag && - cnt == devc->xfer_count) - { - devc->audio_mode |= PCM_ENABLE_OUTPUT; - devc->intr_active = 1; - return; /* - * Auto DMA mode on. No need to react - */ - } - spin_lock_irqsave(&devc->lock,flags); - - ad_write(devc, 15, (unsigned char) (cnt & 0xff)); - ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); - - devc->xfer_count = cnt; - devc->audio_mode |= PCM_ENABLE_OUTPUT; - devc->intr_active = 1; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static void ad1848_start_input(int dev, unsigned long buf, int count, int intrflag) -{ - unsigned long flags, cnt; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - cnt = count; - if (portc->audio_format == AFMT_IMA_ADPCM) - { - cnt /= 4; - } - else - { - if (portc->audio_format & (AFMT_S16_LE | AFMT_S16_BE)) /* 16 bit data */ - cnt >>= 1; - } - if (portc->channels > 1) - cnt >>= 1; - cnt--; - - if ((devc->audio_mode & PCM_ENABLE_INPUT) && (audio_devs[dev]->flags & DMA_AUTOMODE) && - intrflag && - cnt == devc->xfer_count) - { - devc->audio_mode |= PCM_ENABLE_INPUT; - devc->intr_active = 1; - return; /* - * Auto DMA mode on. No need to react - */ - } - spin_lock_irqsave(&devc->lock,flags); - - if (devc->model == MD_1848) - { - ad_write(devc, 15, (unsigned char) (cnt & 0xff)); - ad_write(devc, 14, (unsigned char) ((cnt >> 8) & 0xff)); - } - else - { - ad_write(devc, 31, (unsigned char) (cnt & 0xff)); - ad_write(devc, 30, (unsigned char) ((cnt >> 8) & 0xff)); - } - - ad_unmute(devc); - - devc->xfer_count = cnt; - devc->audio_mode |= PCM_ENABLE_INPUT; - devc->intr_active = 1; - spin_unlock_irqrestore(&devc->lock,flags); -} - -static int ad1848_prepare_for_output(int dev, int bsize, int bcount) -{ - int timeout; - unsigned char fs, old_fs, tmp = 0; - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - ad_mute(devc); - - spin_lock_irqsave(&devc->lock,flags); - fs = portc->speed_bits | (portc->format_bits << 5); - - if (portc->channels > 1) - fs |= 0x10; - - ad_enter_MCE(devc); /* Enables changes to the format select reg */ - - if (devc->model == MD_1845 || devc->model == MD_1845_SSCAPE) /* Use alternate speed select registers */ - { - fs &= 0xf0; /* Mask off the rate select bits */ - - ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ - ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ - } - old_fs = ad_read(devc, 8); - - if (devc->model == MD_4232 || devc->model >= MD_4236) - { - tmp = ad_read(devc, 16); - ad_write(devc, 16, tmp | 0x30); - } - if (devc->model == MD_IWAVE) - ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ - - ad_write(devc, 8, fs); - - /* - * Write to I8 starts resynchronization. Wait until it completes. - */ - - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) - timeout++; - - if (devc->model >= MD_4232) - ad_write(devc, 16, tmp & ~0x30); - - ad_leave_MCE(devc); /* - * Starts the calibration process. - */ - spin_unlock_irqrestore(&devc->lock,flags); - devc->xfer_count = 0; - -#ifndef EXCLUDE_TIMERS - if (dev == timer_installed && devc->timer_running) - if ((fs & 0x01) != (old_fs & 0x01)) - { - ad1848_tmr_reprogram(dev); - } -#endif - ad1848_halt_output(dev); - return 0; -} - -static int ad1848_prepare_for_input(int dev, int bsize, int bcount) -{ - int timeout; - unsigned char fs, old_fs, tmp = 0; - unsigned long flags; - ad1848_info *devc = (ad1848_info *) audio_devs[dev]->devc; - ad1848_port_info *portc = (ad1848_port_info *) audio_devs[dev]->portc; - - if (devc->audio_mode) - return 0; - - spin_lock_irqsave(&devc->lock,flags); - fs = portc->speed_bits | (portc->format_bits << 5); - - if (portc->channels > 1) - fs |= 0x10; - - ad_enter_MCE(devc); /* Enables changes to the format select reg */ - - if ((devc->model == MD_1845) || (devc->model == MD_1845_SSCAPE)) /* Use alternate speed select registers */ - { - fs &= 0xf0; /* Mask off the rate select bits */ - - ad_write(devc, 22, (portc->speed >> 8) & 0xff); /* Speed MSB */ - ad_write(devc, 23, portc->speed & 0xff); /* Speed LSB */ - } - if (devc->model == MD_4232) - { - tmp = ad_read(devc, 16); - ad_write(devc, 16, tmp | 0x30); - } - if (devc->model == MD_IWAVE) - ad_write(devc, 17, 0xc2); /* Disable variable frequency select */ - - /* - * If mode >= 2 (CS4231), set I28. It's the capture format register. - */ - - if (devc->model != MD_1848) - { - old_fs = ad_read(devc, 28); - ad_write(devc, 28, fs); - - /* - * Write to I28 starts resynchronization. Wait until it completes. - */ - - timeout = 0; - while (timeout < 100 && inb(devc->base) != 0x80) - timeout++; - - timeout = 0; - while (timeout < 10000 && inb(devc->base) == 0x80) |